i have had to a 1/3 water change tonight the water was cloudly once again, i tink it has something to do with the gravel.

i tested the water after i had done the water change and am a little concerned the amonnia reading was 0, the nitrite reading was between 0 - 0.25, and the nitrate reading was between 0 - 5.0. are these safe enough??

Nitrate is okay, it's not poisonous for your fish (although it can stress them in high concentrations). If your tank is cycling, the cloudiness will occur, but it'll go away in a couple of days. The nitrite levels will drop, because it'll convert to nitrate. :)